On a day when six other top-10 men's college basketball teams lost, No. 1 Gonzaga also succumbed to an upset.
Gonzaga, the clear-cut favorite to garner the top overall seed in the NCAA Tournament on Selection Sunday
They hadn't lost since early December, ripping off 17 straight wins before Saturday's setback.
It was the team's first loss this season in the West Coast Conference.
It is vastly improved this year and features four teams in the projected tournament field in USA TODAY Sports' latest bracketology.
The 'Zags hadn't lost in WCC play since Feb. 22, 2020, when it lost at Brigham Young.
Tommy Kuhse (14 points) paved the way in the inspired effort to secure the upset.
Matthias Tass (13 points), Alex Ducas and Logan Johnson (each with 10 points) joined Kuhse in double figures.
Fans stormed the court at McKeon Pavilion, where the Gaels finished 16-0 this season.
Gonzaga is still well-positioned to garner the top overall seed on Selection Sunday